From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham autolearn_force=no version=3.4.4 X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 109fba,e1a91c4d90acda97 X-Google-Attributes: gid109fba,public X-Google-Thread: 103376,e1a91c4d90acda97 X-Google-Attributes: gid103376,public X-Google-ArrivalTime: 2001-01-17 20:58:06 PST Path: supernews.google.com!sn-xit-03!supernews.com!cyclone-sjo1.usenetserver.com!news-out.usenetserver.com!cyclone-pass-sjo.usenetserver.com!e420r-atl2.usenetserver.com.POSTED!kabir!jkluebs From: "John Luebs" Subject: Re: Safety-Critical Systems Developed Using C++ Newsgroups: comp.lang.ada,comp.lang.c++ References: <945eeq$vmk$1@nnrp1.deja.com> <3A664EC4.6F679BE0@acm.org> User-Agent: Pan/0.9.1 (Unix) X-No-Productlinks: Yes Message-ID: <6Hu96.4848$rw.42689@e420r-atl2.usenetserver.com> X-Complaints-To: abuse@usenetserver.com X-Abuse-Info: Please be sure to forward a copy of ALL headers X-Abuse-Info: Otherwise we will be unable to process your complaint properly. NNTP-Posting-Date: Wed, 17 Jan 2001 23:55:30 EST Organization: WebUseNet Corp http://www.usenetserver.com - Home of the fastest NNTP servers on the Net. Date: Wed, 17 Jan 2001 23:57:16 +0500 Xref: supernews.google.com comp.lang.ada:4141 comp.lang.c++:40207 Date: 2001-01-17T23:57:16+05:00 List-Id: In article <3A664EC4.6F679BE0@acm.org>, "Marin David Condic" wrote: > You'll get a lot of argument there from this crowd! :-) > > I had a ten year study of error rates in embedded code for safety > critical systems. Moving to Ada reduced the error rates by a factor of > four. Same programmers. Same problem domain. Same sort of system > architecture. No way around it. Ada's compile time checking, strong > typing, etc., reduced the error rates. And not by just a little. > Ada reduces error rates! So that's why the DoD abandoned it as fast as possible! > It's hard to argue with data that demonstrates a reduced error rate. All > programmers make mistakes. Stronger checking up front catches more of > them and reduces the cost of fixing them. > > MDC